I'm curious to see how many people use this feature and to what extent.
I've only really bumped heads with a few folks in all my time here, but I've never considered putting anyone on ignore. You'd miss out on part of the conversation. A conversation that you were obviously interested enough in to get in there and read....so IMO I don't think it makes much sense. And....just because you don't particularly care for someone doesn't mean they might not....at some point in time....possibly....say something meaningful!
So....waddaya got?